Do men worry about their biological clock?

I'm back now from my August vacation/holiday ~ and getting back into the swing of blogging again!

I saw this while I was away and thought it was an interesting article.  Even though it is now thought that a man's age plays a part in fertility and in the higher risk for having a child with a disability, it seems that men are not likely to worry about their biological clocks.

http://parenting.blogs.nytimes.com/2012/08/24/will-men-really-worry-about-their-biological-clocks/?smid=tw-NYTMotherlode&seid=auto